Merge pull request flann-lib#184 from harrysummer/patch-1

Fix CMakeLists.txt for MSVC

Author: mariusmuja

CMakeLists.txt

@@ -148,7 +148,7 @@ include_directories(BEFORE ${PROJECT_SOURCE_DIR}/src/cpp)
 # require proper c++
 #add_definitions( "-Wall -ansi -pedantic" )
 # HDF5 uses long long which is not ansi
-if("${CMAKE_C_COMPILER_ID}" MATCHES "MSVC" OR "${CMAKE_CXX_COMPILER_ID}" MATCHES "MSVC")
+if(CMAKE_C_COMPILER_ID MATCHES "MSVC" OR CMAKE_CXX_COMPILER_ID MATCHES "MSVC")
     # lots of warnings with cl.exe right now, use /W1
     add_definitions("/W1 -D_CRT_SECURE_NO_WARNINGS -D_SCL_SECURE_NO_WARNINGS /bigobj")
 else()